Even if you wear an NC Foundation, an NW concealer will look better because layering yellow-toned concealers over dark circles can create a greyish colour. Even if you’re using an NC concealer and you think it looks good, try an NW and it will most likely look better. MAC’s NC concealers rarely match up to anyone and can look a little grey on most people. The higher the number, the deeper the colour. The number that follows the letters denotes the depth of the shade. If your vein looks more greenish, then you have more yellow or golden undertones. If your vein looks bluer, then you most likely have pinkish undertones. To determine what your undertones are, take a look at the underside of your forearm.
The MAC Concealer and foundation shades are broken down into codes, which help describe the colour of the product.
